Oil filtering and refining means



May l2, 1931. Y L. HARVEY OIL FILTERING AND REFINING- MEANS Filed July l. 1929 INVENTOA L E E. HBR Y EY BY I TTORNEY I l *i Patented May ,19131.

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This invention refers to an oilfiltering and refining means forautomobiles.

The principal object of this invention is to produce a device which may be utilized on 5" any standard automobile or in combination with an engine for the purpose' of refining the oil used therein. s

Another object is to produce a device of this character wherein the filteringand'refining element may be quickly. removed and replaced with a new element.

A further object is to produce means 'whereby the filtering element will-beautomati'cally removed from the fiow of Huid should for any reason the element become clogged, thereby permitting the oil to by-pass the element.

A still further object is to provide a de-y vice which is neat in appearance andeconomical to manufacture.

Other objects and advantages will be a parent during the course of the following escription.

In the accompanying drawings forming. a part of this spezificatiom'A and in' which-like numerals are employed to designate like parts throughout the same, v 4;

Figure i is a vertical cross-section of my device, and

y Figure H is a side elevation of the filtering and refining element.

At the present time it is common-tc employ ilters of this character in connection wit automobiles. These filters do not'iin any sense of the word refine the' o il passing there-through, they merely straindoutfparticles of sedimentin the oil. Applicants device diiers' in that henot only strains the oil.

but he also employs a refining medium which has an aiiinity for oil, and will absorb five tifes its own weight in the'lghter'oil prod-V ucts such as gasoline, naphtha and the like which has diluted the oil being filtered.

It is also a common fact that with the pres ent type of filter, as soon as the filter becomes clogged a by-pass is permitted which is supposed to prevent the continuous flow of the fiuid around the filtering element. The arrangement is such, however, that the vlay-pass often becomes stuck with the result that the tainer and the oil will be lost.

pressure within Vthe device-will break the con- In my dem@ this. is impossible du@ tothe simplicity of construction and further my device is so constructed that it isimpossible for any of the fluid `within the device to return to the engine when the same stops, while in the present form of device the 011 within Y i the strainer will gradually siphon back into the crankcase and' draw the sediment for sludge contained within the filtering element, thu's undoing all of the work of the filter.

In the accompanying drawings wherein for the purpose o ferred embodiment of my invention the num eral 5V designates the case of m device having a bottom 6 and a top 7.l The ottom and top are both removable from the case 5. However, in use the top is the only part-that isv easily removed, which is accomplished illustration is 'shown a pre. I y

throu h the medium of va' boss 8 to which a Wrenc may bea plied.

-A'n inlet pipe isshown at 9 which has aA tapered extremity 11.'4 An outlet pipe :isv

shown at 12. The construction thus far cle-- scribes my device as Vfar asethe same is er-v manently attached to the vehicle. The fi ter-` ing and refining element is housed within this de vie and. consists of a cylindrical cartridge which is referably formed of two layers of 'wire mes' in the form` of-c -linde're 13 and H14 concentricall` arrange which is a cloth abric 16.

The inner wire mesh14 serves to .supio a plastic refining medium 17. This me is asted or otherwise placed on the mesh.

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while the top plate 18 and the bottom plate.

19 are rovlded with annulan' substantially charme shaped recesses arranged at. the outer peripheries thereof and: provides seats for the ends of the wiremesli cylinders. and cloth fabric 16, the walls of the recesses being curved `and crimpedupon the cylindrical mesh construction. 3 u

The cap 18 has a dome 21 'formed' therein the pur ose of which: will be later seen.

The Eottom 19 `has a conical upset 2 2 to which a pipe 23 is connected. `lT'h upper end of the pipe is serrated and projects intothe l -dome 21. 'A spring 24 rests upon the cap 1 8' '10.01"'

`Pire 12.

hould for any reason the filtering and relining element become clogged, the pressure ofoil therein would quickly overcome the spring 24 and raise* lthe entire .ele-

j- 4vment away from the tapered end 11 with the result that the iltering'and refining element would move into the dotted line `position of Figure I, and then the oil would flow directly from the pipe 9 to the space between the liltering element and the case 5, as shown by the dotted arrow of this figure. When it is desired to renew the filtering element the cap 7 is unscrewed, and the element lifted out, and due to the fact that the pipe 23 extends to the top of the filtering element and into the dome 21, it is apparent that none of the dirty oil contained within the filtering element can run 4 backinto the clean oil, or into the crankcase.

This same fact is true when the engine stops running in that it is impossible for the oil within the filter to return to the crankcase as the-only amount of oil that can be sucked back is that small portion within the dome 21 which is negligible.

It will thus be seen that I have provided a very simple device which will perform all of the objects herein set forth.

It is to be understood that the form of my invention herewith shown and described, is to be taken as a preferred example of the same and that various changes relative to the shape, size, material and arrangement of parts may be resorted to without departing from the spirit of the invention, or the scope of the subjoined claim.

Having thus described my invention, I claim In an oil filtering and refining device, a case, a bottom and a top for said case and detachably secured with respect thereto, an inlet pipe extending centrally through the bottom and terminating above said bottom in tapered formation, an outlet pipe extending laterally from said case, a filtering element including a cap, a dome centrally formedwith said cap, a bottom having a raised conical portion disposed for fitting engagement with the tapered upper end of said inlet pipe,-

a pipe formed with and rising from the raised conical portion and being provided with a serrated upper end projecting to the dome, said cap and bottom of the filtering element being provided with annular substantially channel shaped recesses arranged at the outer perforations thereof, concentrically arranged cylindrical screen members surrounding the 

